Separator anb spacer for storage batteries



SEPARATOR AND SPACER FOR STORAGE BATTERIES Filed Oct. 18, 1927 mar/es /47;

13 MM (its Patented June 2, 1931 UNITED STATES CHARLES W. TERRY, OFDETROIT, MICHIGAN SEPARATOR AND SPACER FOR STORAGE BATTERIES Applicationfiled October 18, 1927. Serial No. 226,855.

A separator and spacer embodying features of the invention consists oftwo parts, one a framework or grating having on one face thereof top andbottom ledges and having on the other face spaces extending across thehorizontal bars of the grating and provided by extensions of thevertical bars of the grating, and the other a flat member or panelfitting between the ledges and lying against the vertical bars of thegrating and covering the latter. The grating is made of hard rubber orsimilar insulating and inert material having Considerable .mechanicalstrength and the flat sheet or panel is of wood veneer. In use the hardrubber grating is arranged adjacent to the positive pole plate and thewood veneer is arranged against the face of the negative pole plate.

From the foregoing and from the follow- 29 ing description the objectsof the invention will appear and the invention will be claimed at theend hereof.

The following description will be made in connection with theaccompanying drawings forming part hereof and in which Figure 1 is aView of a separator and spacer embodying features of the inventionviewed from the grating'side.

Fig. 2 is a sectional View taken on the line 22 of Fig. 1, and

Figs. 3 and e are perspective views respectively of the panel and of thegrillage.

Referring to the drawings, the insulating inert grating of suiiicientmechanical strength illustrated in Fig. 4 comprises a pair of spacedhorizontal bars 1 and 2 having a series of spaced vertical bars 3crossing the horizontal bars and laid upon them. Ledges 4 are providedat the top and bottom of the grating and on one face thereof. '5 is aWood veneer panel and it is fitted between the top and bottom bars orledges and lies against the vertical bars.

It will be observed that the faces of the vertical bars of the gratingand the faces of the top and bottom bars which are in contact with eachother lie in the same plane, and the bars of the grating project fromone side of that plane while the top and bottom bars project from theother side.

Advantages of this construction are that the hard rubber grating servesas a mechanical spacer between adjacent storage battery plates and takesno strain caused by a tendency to buckling or any abrasion due toshifting of the relative positions of the positive and negative plates.The grating also serves to keep the wood veneer away from the face ofthe positive pole plate and therefore out of contact with the lead per-00 oxide which has a tendency to oxidize and disintegrate the wood sheetor panel. The grating does not interfere with vertical circulation ofelectrolyte nor with the escape of gas bubbles and it allows freepassage for any active material which may be dislodged from the positiveplate to fall to the bottom of the jar. This because of the channelsprovided as at 6 between the vertical bars 3.

Under some conditions it is desirable that the grain of the wood veneershall be horizontal. My invention is well adapted to provide for thissince the vertical bars 3 will then bear upon the wood veneer across itsgrain, and in this position the wood veneer is less likely to beindented or abraided by these bars.

It will be obvious to those skilled in the art to which the inventionrelates that modifications may be made in details of construction andarrangement and in matters of mere form without departing from thespirit of the invention which is not limited to such matters orotherwise than the prior art and the appended claim may require.

I claim:

A storage battery separator and spacer comprising a grating consistingof horizontal top and bottom bars and spaced vertical bars, the two setsof bars projecting oppositely from a common plane,'leaving channels between the ends of the vertical bars across the horizontal bars, and apanel of porous material lying between the horizontal bars and againstthe face of the vertical bars.

CHARLES WV. TERRY.

